Brake apparatus.



W. H. JONES.

BRAKE APPARATUS.

urmoumn 21mm mm: 12, 1911.

Patented Sept.2,1913.

WITNESSES A l Ara/127% UNITED STA'IES PATENT OFFICE.

WILLIAM H. JONES, OF CHICAGO, ILLINOIS.

FBAKE APPARATUS.

- ply on metal-straps. By the provision of frictionless carriages and tracks for supporting these levers I have produced a brake apparatus which works much more smoothly than the usual form and thus insures a more ready and certain release of-the brake shoes, and which is entirely free from the usual harsh and annoying rasping and grating noises incident to the usual form. Its novelty consists in the provision of a friction less carriage in the combination and association of parts hereinafter described, and the construction and arrangement of such carriages; all as more fully pointed out in the appended claims.

Figure 1 of the drawings is a diagrammatic top plan view showing parts of a brake apparatus embodying my invention,

arts connected to the right hand connectmg rod 4 being omitted; Fig. 2 a side view of a track and carriage; Fig. '3 an end view of the same with the lever supported thereby and associated parts; and 'Figs. 4, 5, 6 and 7 details showing respectively a top view of the carriage, a cross section of the carriage and track on the line 5-5 of Fig. 6, a sideview of the carriage and an end view of the same.

Referring to Fig. 1, the pistons of the usual brake cylinderl are pivoted to the horizontalcylinder levers 2, which are pivotally connected to the equalizing cross bar or tie rod 3. The outer .end of the levers Qarepivdtally connected to the inner ends of o sitely extending. connecting rods 4 ,Jwhieli,

serve to operate the rods 4 and throu them :the brakes at the'opposite ends of t car by means of usual and well-known con- Speciflcatien of Letters Patent.

Application filed June 12, 1911.

through intermediate connection,

nections, not illustrated' In order to 03-;

Patented Sept. 2,1913. Serial No. 832,624.

able the brakes to be set and released by hand, a connecting rod 5 which is operated by the ordinary hand brake (not shown) is pivotally connected at its inner end ,to a floating lever 6,.pivoted intermediately to the rod 4 and at its other end to a link 7, which latter is pivoted to a fulcrum lever 8,

intermediately connected to the rod 4.

Near its other end this lever 8 is pivotally attached to the framework of the car and a plunger rod 9 pivoted to the end of the lever and surrounded by a spring 10 tends to press the lever in a direction to release the brakes. It will readily be understood that with the arrangement and construction of parts thus far described, all of which are old and well-known, when the hand brake remains in unset position, the actuation of the pistons of the brake cylinder will cause a movement of the connecting rods 4, and through each rod of the lever 6 upon the pivotal connection of such lever with the rod 5 as a fulcrum; while if the air brake remains unoperated the movement by the hand brake of the rod 5 (toward the left, Fig. 1) will cause a movement of both rods 4 toward the left (same figure); the result in either case of-the stress so applied to the described organization of links and levers being to draw the brakes inwardly or toward each other through the brake rod 4 of each brake, to cause the brakes to be applied to the car wheels.

Referring now particularly to the novel means I have devised for maintaining and supporting the levers and connected parts heretoforedescribed in operative relation, the carriage 11 travels upon a track 12 supported at its ends by the framework of the car. Preferably, and as here illustrated,

track 12 is bolted to end brackets 13, which" upon which the carriage travels are re-,

tained in place by the depending side flanges 15 .anddegending end walls 16 connecting.

each side anges, an intermediate cross-ri 17 aervingto retain each ball in its own division of the ball chamber. The carriage is secured against displacement from the track by a strap 18 passing underneath the latter, and connecting the opposite edges of the flanges 15 of the carriage.

I claim:

1. In apparatus cf the class described and in combination with a horizontal lever, a track suspended at its ends, a carriage adapted to travel thereon and carry said lever, said carriage having depending side flanges and end walls forming a ball chamber, balls in said chamber, and means for preventing lateral displacement of the lever with re spect to the carriage.

2. In apparatus of the class described and in combination with a horizontal lever, a track suspended at its ends, a carriage arranged to travel thereon and having a ball chamber divided transvet'sely into two compartments, and a ball in each compartment,

said carriage being arranged to carry said lever.

3. In apparatus of theclass described and in combination with a horizontal lever, 11 25 a a on, said carriage being equipped with up standing end flanges and with depending 35 side flanges and. end walls forming a ball chamber and also with a depending strap and balls in said ball chamber.

WILLIAM H. JUNE.

Witnesses:

Lewis B. ERWIN, ROBERT DOBBERMAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Yatents, Washington, D. C. 

